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Finding the Fourth Proportional to 170,088.63, 255,190.60 and 75,305.74

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Solution

The fourth proportional to 170,088.63, 255,190.60 and 75,305.74 is: 112,984.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,088.63 : 255,190.60 = 75,305.74 : x
  2. Step 2: Convert to fraction form
    170,088.63/255,190.60 = 75,305.74/x
  3. Step 3: Cross multiply
    170,088.63x = 255,190.60 × 75,305.74
  4. Step 4: Simplify right side
    170,088.63x = 19,217,316,974.04
  5. Step 5: Solve for x
    x = 19,217,316,974.04/170,088.63
  6. Step 6: Final answer
    x = 112,984.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.